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Finding the Fourth Proportional to 124,967.16, 172,446.12 and 71,254.44

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Solution

The fourth proportional to 124,967.16, 172,446.12 and 71,254.44 is: 98,326.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,967.16 : 172,446.12 = 71,254.44 : x
  2. Step 2: Convert to fraction form
    124,967.16/172,446.12 = 71,254.44/x
  3. Step 3: Cross multiply
    124,967.16x = 172,446.12 × 71,254.44
  4. Step 4: Simplify right side
    124,967.16x = 12,287,551,710.77
  5. Step 5: Solve for x
    x = 12,287,551,710.77/124,967.16
  6. Step 6: Final answer
    x = 98,326.25

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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.