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Finding the Fourth Proportional to 106,781.78, 147,352.53 and 59,032.28

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Solution

The fourth proportional to 106,781.78, 147,352.53 and 59,032.28 is: 81,461.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,781.78 : 147,352.53 = 59,032.28 : x
  2. Step 2: Convert to fraction form
    106,781.78/147,352.53 = 59,032.28/x
  3. Step 3: Cross multiply
    106,781.78x = 147,352.53 × 59,032.28
  4. Step 4: Simplify right side
    106,781.78x = 8,698,555,072.91
  5. Step 5: Solve for x
    x = 8,698,555,072.91/106,781.78
  6. Step 6: Final answer
    x = 81,461.05

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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.