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Finding the Fourth Proportional to 98,875.60, 136,448.48 and 53,553.68

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Solution

The fourth proportional to 98,875.60, 136,448.48 and 53,553.68 is: 73,904.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,875.60 : 136,448.48 = 53,553.68 : x
  2. Step 2: Convert to fraction form
    98,875.60/136,448.48 = 53,553.68/x
  3. Step 3: Cross multiply
    98,875.60x = 136,448.48 × 53,553.68
  4. Step 4: Simplify right side
    98,875.60x = 7,307,318,234.41
  5. Step 5: Solve for x
    x = 7,307,318,234.41/98,875.60
  6. Step 6: Final answer
    x = 73,904.16

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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.