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Finding the Fourth Proportional to 103,492,980.60, 155,239,470.90 and 88,104,811.20

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Solution

The fourth proportional to 103,492,980.60, 155,239,470.90 and 88,104,811.20 is: 132,157,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,492,980.60 : 155,239,470.90 = 88,104,811.20 : x
  2. Step 2: Convert to fraction form
    103,492,980.60/155,239,470.90 = 88,104,811.20/x
  3. Step 3: Cross multiply
    103,492,980.60x = 155,239,470.90 × 88,104,811.20
  4. Step 4: Simplify right side
    103,492,980.60x = 13,677,344,274,432,396
  5. Step 5: Solve for x
    x = 13,677,344,274,432,396/103,492,980.60
  6. Step 6: Final answer
    x = 132,157,216.80

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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.