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Finding the Fourth Proportional to 65,879,287.70, 98,818,931.55 and 48,873,175.70

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Solution

The fourth proportional to 65,879,287.70, 98,818,931.55 and 48,873,175.70 is: 73,309,763.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,879,287.70 : 98,818,931.55 = 48,873,175.70 : x
  2. Step 2: Convert to fraction form
    65,879,287.70/98,818,931.55 = 48,873,175.70/x
  3. Step 3: Cross multiply
    65,879,287.70x = 98,818,931.55 × 48,873,175.70
  4. Step 4: Simplify right side
    65,879,287.70x = 4,829,595,004,129,423
  5. Step 5: Solve for x
    x = 4,829,595,004,129,423/65,879,287.70
  6. Step 6: Final answer
    x = 73,309,763.55

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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.