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Finding the Fourth Proportional to 125,309.56, 172,925.58 and 71,594.16

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Solution

The fourth proportional to 125,309.56, 172,925.58 and 71,594.16 is: 98,799.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,309.56 : 172,925.58 = 71,594.16 : x
  2. Step 2: Convert to fraction form
    125,309.56/172,925.58 = 71,594.16/x
  3. Step 3: Cross multiply
    125,309.56x = 172,925.58 × 71,594.16
  4. Step 4: Simplify right side
    125,309.56x = 12,380,461,642.61
  5. Step 5: Solve for x
    x = 12,380,461,642.61/125,309.56
  6. Step 6: Final answer
    x = 98,799.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.