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Finding the Fourth Proportional to 124,387.64, 171,657.06 and 67,802.12

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Solution

The fourth proportional to 124,387.64, 171,657.06 and 67,802.12 is: 93,568.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,387.64 : 171,657.06 = 67,802.12 : x
  2. Step 2: Convert to fraction form
    124,387.64/171,657.06 = 67,802.12/x
  3. Step 3: Cross multiply
    124,387.64x = 171,657.06 × 67,802.12
  4. Step 4: Simplify right side
    124,387.64x = 11,638,712,580.97
  5. Step 5: Solve for x
    x = 11,638,712,580.97/124,387.64
  6. Step 6: Final answer
    x = 93,568.08

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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.