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Finding the Fourth Proportional to 346,719.80, 520,079.70 and 160,095.80

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Solution

The fourth proportional to 346,719.80, 520,079.70 and 160,095.80 is: 240,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,719.80 : 520,079.70 = 160,095.80 : x
  2. Step 2: Convert to fraction form
    346,719.80/520,079.70 = 160,095.80/x
  3. Step 3: Cross multiply
    346,719.80x = 520,079.70 × 160,095.80
  4. Step 4: Simplify right side
    346,719.80x = 83,262,575,635.26
  5. Step 5: Solve for x
    x = 83,262,575,635.26/346,719.80
  6. Step 6: Final answer
    x = 240,143.70

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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.