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Finding the Fourth Proportional to 107,060.13, 147,748.05 and 64,617.75

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Solution

The fourth proportional to 107,060.13, 147,748.05 and 64,617.75 is: 89,175.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,060.13 : 147,748.05 = 64,617.75 : x
  2. Step 2: Convert to fraction form
    107,060.13/147,748.05 = 64,617.75/x
  3. Step 3: Cross multiply
    107,060.13x = 147,748.05 × 64,617.75
  4. Step 4: Simplify right side
    107,060.13x = 9,547,146,557.89
  5. Step 5: Solve for x
    x = 9,547,146,557.89/107,060.13
  6. Step 6: Final answer
    x = 89,175.56

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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.