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Finding the Fourth Proportional to 75,556,981.60, 113,146,515.60 and 60,440,437.60

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Solution

The fourth proportional to 75,556,981.60, 113,146,515.60 and 60,440,437.60 is: 90,509,503.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,556,981.60 : 113,146,515.60 = 60,440,437.60 : x
  2. Step 2: Convert to fraction form
    75,556,981.60/113,146,515.60 = 60,440,437.60/x
  3. Step 3: Cross multiply
    75,556,981.60x = 113,146,515.60 × 60,440,437.60
  4. Step 4: Simplify right side
    75,556,981.60x = 6,838,624,915,779,226
  5. Step 5: Solve for x
    x = 6,838,624,915,779,226/75,556,981.60
  6. Step 6: Final answer
    x = 90,509,503.83

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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.