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Finding the Fourth Proportional to 55,834,024.60, 83,751,036.90 and 42,920,008.30

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Solution

The fourth proportional to 55,834,024.60, 83,751,036.90 and 42,920,008.30 is: 64,380,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,834,024.60 : 83,751,036.90 = 42,920,008.30 : x
  2. Step 2: Convert to fraction form
    55,834,024.60/83,751,036.90 = 42,920,008.30/x
  3. Step 3: Cross multiply
    55,834,024.60x = 83,751,036.90 × 42,920,008.30
  4. Step 4: Simplify right side
    55,834,024.60x = 3,594,595,198,881,606.50
  5. Step 5: Solve for x
    x = 3,594,595,198,881,606.50/55,834,024.60
  6. Step 6: Final answer
    x = 64,380,012.45

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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.