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Finding the Fourth Proportional to 98,889,014.30, 148,396,507.05 and 57,948,374.30

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Solution

The fourth proportional to 98,889,014.30, 148,396,507.05 and 57,948,374.30 is: 86,959,470.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,889,014.30 : 148,396,507.05 = 57,948,374.30 : x
  2. Step 2: Convert to fraction form
    98,889,014.30/148,396,507.05 = 57,948,374.30/x
  3. Step 3: Cross multiply
    98,889,014.30x = 148,396,507.05 × 57,948,374.30
  4. Step 4: Simplify right side
    98,889,014.30x = 8,599,336,335,345,989
  5. Step 5: Solve for x
    x = 8,599,336,335,345,989/98,889,014.30
  6. Step 6: Final answer
    x = 86,959,470.64

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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.