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Finding the Fourth Proportional to 104,290.80, 156,407.40 and 37,718.40

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Solution

The fourth proportional to 104,290.80, 156,407.40 and 37,718.40 is: 56,567.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,290.80 : 156,407.40 = 37,718.40 : x
  2. Step 2: Convert to fraction form
    104,290.80/156,407.40 = 37,718.40/x
  3. Step 3: Cross multiply
    104,290.80x = 156,407.40 × 37,718.40
  4. Step 4: Simplify right side
    104,290.80x = 5,899,436,876.16
  5. Step 5: Solve for x
    x = 5,899,436,876.16/104,290.80
  6. Step 6: Final answer
    x = 56,567.18

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1.5x scale

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.