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Finding the Fourth Proportional to 91,566,141.60, 137,349,212.40 and 79,236,710.40

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Solution

The fourth proportional to 91,566,141.60, 137,349,212.40 and 79,236,710.40 is: 118,855,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,566,141.60 : 137,349,212.40 = 79,236,710.40 : x
  2. Step 2: Convert to fraction form
    91,566,141.60/137,349,212.40 = 79,236,710.40/x
  3. Step 3: Cross multiply
    91,566,141.60x = 137,349,212.40 × 79,236,710.40
  4. Step 4: Simplify right side
    91,566,141.60x = 10,883,099,766,606,890
  5. Step 5: Solve for x
    x = 10,883,099,766,606,890/91,566,141.60
  6. Step 6: Final answer
    x = 118,855,065.60

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1.5x scale

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.