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Finding the Fourth Proportional to 70,455,564.60, 105,683,346.90 and 32,191,812.60

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Solution

The fourth proportional to 70,455,564.60, 105,683,346.90 and 32,191,812.60 is: 48,287,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,455,564.60 : 105,683,346.90 = 32,191,812.60 : x
  2. Step 2: Convert to fraction form
    70,455,564.60/105,683,346.90 = 32,191,812.60/x
  3. Step 3: Cross multiply
    70,455,564.60x = 105,683,346.90 × 32,191,812.60
  4. Step 4: Simplify right side
    70,455,564.60x = 3,402,138,498,345,591.50
  5. Step 5: Solve for x
    x = 3,402,138,498,345,591.50/70,455,564.60
  6. Step 6: Final answer
    x = 48,287,718.90

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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.