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Finding the Fourth Proportional to 70,454,471.60, 105,681,707.40 and 47,496,220.40

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Solution

The fourth proportional to 70,454,471.60, 105,681,707.40 and 47,496,220.40 is: 71,244,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,454,471.60 : 105,681,707.40 = 47,496,220.40 : x
  2. Step 2: Convert to fraction form
    70,454,471.60/105,681,707.40 = 47,496,220.40/x
  3. Step 3: Cross multiply
    70,454,471.60x = 105,681,707.40 × 47,496,220.40
  4. Step 4: Simplify right side
    70,454,471.60x = 5,019,481,666,918,711
  5. Step 5: Solve for x
    x = 5,019,481,666,918,711/70,454,471.60
  6. Step 6: Final answer
    x = 71,244,330.60

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1.5x scale

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.