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Finding the Fourth Proportional to 92,881.54, 128,097.57 and 62,662.06

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Solution

The fourth proportional to 92,881.54, 128,097.57 and 62,662.06 is: 86,420.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,881.54 : 128,097.57 = 62,662.06 : x
  2. Step 2: Convert to fraction form
    92,881.54/128,097.57 = 62,662.06/x
  3. Step 3: Cross multiply
    92,881.54x = 128,097.57 × 62,662.06
  4. Step 4: Simplify right side
    92,881.54x = 8,026,857,617.19
  5. Step 5: Solve for x
    x = 8,026,857,617.19/92,881.54
  6. Step 6: Final answer
    x = 86,420.38

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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.