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Finding the Fourth Proportional to 86,127.66, 118,914.15 and 77,024.73

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Solution

The fourth proportional to 86,127.66, 118,914.15 and 77,024.73 is: 106,345.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,127.66 : 118,914.15 = 77,024.73 : x
  2. Step 2: Convert to fraction form
    86,127.66/118,914.15 = 77,024.73/x
  3. Step 3: Cross multiply
    86,127.66x = 118,914.15 × 77,024.73
  4. Step 4: Simplify right side
    86,127.66x = 9,159,330,296.93
  5. Step 5: Solve for x
    x = 9,159,330,296.93/86,127.66
  6. Step 6: Final answer
    x = 106,345.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.