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Finding the Fourth Proportional to 108,561.16, 149,813.58 and 60,814.90

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Solution

The fourth proportional to 108,561.16, 149,813.58 and 60,814.90 is: 83,924.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,561.16 : 149,813.58 = 60,814.90 : x
  2. Step 2: Convert to fraction form
    108,561.16/149,813.58 = 60,814.90/x
  3. Step 3: Cross multiply
    108,561.16x = 149,813.58 × 60,814.90
  4. Step 4: Simplify right side
    108,561.16x = 9,110,897,886.34
  5. Step 5: Solve for x
    x = 9,110,897,886.34/108,561.16
  6. Step 6: Final answer
    x = 83,924.10

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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.