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Finding the Fourth Proportional to 417,557.55, 626,330.87 and 102,017.19

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Solution

The fourth proportional to 417,557.55, 626,330.87 and 102,017.19 is: 153,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,557.55 : 626,330.87 = 102,017.19 : x
  2. Step 2: Convert to fraction form
    417,557.55/626,330.87 = 102,017.19/x
  3. Step 3: Cross multiply
    417,557.55x = 626,330.87 × 102,017.19
  4. Step 4: Simplify right side
    417,557.55x = 63,896,514,857.57
  5. Step 5: Solve for x
    x = 63,896,514,857.57/417,557.55
  6. Step 6: Final answer
    x = 153,024.45

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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.