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Finding the Fourth Proportional to 70,459.60, 105,705.24 and 23,711.12

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Solution

The fourth proportional to 70,459.60, 105,705.24 and 23,711.12 is: 35,572.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,459.60 : 105,705.24 = 23,711.12 : x
  2. Step 2: Convert to fraction form
    70,459.60/105,705.24 = 23,711.12/x
  3. Step 3: Cross multiply
    70,459.60x = 105,705.24 × 23,711.12
  4. Step 4: Simplify right side
    70,459.60x = 2,506,389,630.27
  5. Step 5: Solve for x
    x = 2,506,389,630.27/70,459.60
  6. Step 6: Final answer
    x = 35,572.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.