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Finding the Fourth Proportional to 127,491,657.60, 191,237,486.40 and 41,291,927.40

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Solution

The fourth proportional to 127,491,657.60, 191,237,486.40 and 41,291,927.40 is: 61,937,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,491,657.60 : 191,237,486.40 = 41,291,927.40 : x
  2. Step 2: Convert to fraction form
    127,491,657.60/191,237,486.40 = 41,291,927.40/x
  3. Step 3: Cross multiply
    127,491,657.60x = 191,237,486.40 × 41,291,927.40
  4. Step 4: Simplify right side
    127,491,657.60x = 7,896,564,404,587,287
  5. Step 5: Solve for x
    x = 7,896,564,404,587,287/127,491,657.60
  6. Step 6: Final answer
    x = 61,937,891.10

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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.