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Finding the Fourth Proportional to 100,935.60, 151,111.80 and 61,569.60

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Solution

The fourth proportional to 100,935.60, 151,111.80 and 61,569.60 is: 92,176.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,935.60 : 151,111.80 = 61,569.60 : x
  2. Step 2: Convert to fraction form
    100,935.60/151,111.80 = 61,569.60/x
  3. Step 3: Cross multiply
    100,935.60x = 151,111.80 × 61,569.60
  4. Step 4: Simplify right side
    100,935.60x = 9,303,893,081.28
  5. Step 5: Solve for x
    x = 9,303,893,081.28/100,935.60
  6. Step 6: Final answer
    x = 92,176.53

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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.