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Finding the Fourth Proportional to 366,304.30, 549,373.29 and 129,646.87

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Solution

The fourth proportional to 366,304.30, 549,373.29 and 129,646.87 is: 194,440.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,304.30 : 549,373.29 = 129,646.87 : x
  2. Step 2: Convert to fraction form
    366,304.30/549,373.29 = 129,646.87/x
  3. Step 3: Cross multiply
    366,304.30x = 549,373.29 × 129,646.87
  4. Step 4: Simplify right side
    366,304.30x = 71,224,527,510.10
  5. Step 5: Solve for x
    x = 71,224,527,510.10/366,304.30
  6. Step 6: Final answer
    x = 194,440.87

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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.