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Finding the Fourth Proportional to 130,388,045.85, 195,582,068.78 and 130,388,045.85

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Solution

The fourth proportional to 130,388,045.85, 195,582,068.78 and 130,388,045.85 is: 195,582,068.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,388,045.85 : 195,582,068.78 = 130,388,045.85 : x
  2. Step 2: Convert to fraction form
    130,388,045.85/195,582,068.78 = 130,388,045.85/x
  3. Step 3: Cross multiply
    130,388,045.85x = 195,582,068.78 × 130,388,045.85
  4. Step 4: Simplify right side
    130,388,045.85x = 25,501,563,750,872,552
  5. Step 5: Solve for x
    x = 25,501,563,750,872,552/130,388,045.85
  6. Step 6: Final answer
    x = 195,582,068.78

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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.