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Finding the Fourth Proportional to 52,806,731.80, 79,210,097.70 and 45,248,459.80

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Solution

The fourth proportional to 52,806,731.80, 79,210,097.70 and 45,248,459.80 is: 67,872,689.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,806,731.80 : 79,210,097.70 = 45,248,459.80 : x
  2. Step 2: Convert to fraction form
    52,806,731.80/79,210,097.70 = 45,248,459.80/x
  3. Step 3: Cross multiply
    52,806,731.80x = 79,210,097.70 × 45,248,459.80
  4. Step 4: Simplify right side
    52,806,731.80x = 3,584,134,921,532,522.50
  5. Step 5: Solve for x
    x = 3,584,134,921,532,522.50/52,806,731.80
  6. Step 6: Final answer
    x = 67,872,689.70

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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.