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Finding the Fourth Proportional to 342,081,036.45, 513,121,554.68 and 342,081,036.45

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Solution

The fourth proportional to 342,081,036.45, 513,121,554.68 and 342,081,036.45 is: 513,121,554.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,081,036.45 : 513,121,554.68 = 342,081,036.45 : x
  2. Step 2: Convert to fraction form
    342,081,036.45/513,121,554.68 = 342,081,036.45/x
  3. Step 3: Cross multiply
    342,081,036.45x = 513,121,554.68 × 342,081,036.45
  4. Step 4: Simplify right side
    342,081,036.45x = 175,529,153,248,059,328
  5. Step 5: Solve for x
    x = 175,529,153,248,059,328/342,081,036.45
  6. Step 6: Final answer
    x = 513,121,554.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.