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Finding the Fourth Proportional to 107,294.96, 147,999.68 and 69,104

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Solution

The fourth proportional to 107,294.96, 147,999.68 and 69,104 is: 95,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,294.96 : 147,999.68 = 69,104 : x
  2. Step 2: Convert to fraction form
    107,294.96/147,999.68 = 69,104/x
  3. Step 3: Cross multiply
    107,294.96x = 147,999.68 × 69,104
  4. Step 4: Simplify right side
    107,294.96x = 10,227,369,886.72
  5. Step 5: Solve for x
    x = 10,227,369,886.72/107,294.96
  6. Step 6: Final answer
    x = 95,320.13

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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.