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Finding the Fourth Proportional to 108,393.84, 149,569.47 and 60,637.86

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Solution

The fourth proportional to 108,393.84, 149,569.47 and 60,637.86 is: 83,672.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,393.84 : 149,569.47 = 60,637.86 : x
  2. Step 2: Convert to fraction form
    108,393.84/149,569.47 = 60,637.86/x
  3. Step 3: Cross multiply
    108,393.84x = 149,569.47 × 60,637.86
  4. Step 4: Simplify right side
    108,393.84x = 9,069,572,582.13
  5. Step 5: Solve for x
    x = 9,069,572,582.13/108,393.84
  6. Step 6: Final answer
    x = 83,672.40

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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.