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Finding the Fourth Proportional to 88,842.40, 133,090.80 and 49,328.80

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Solution

The fourth proportional to 88,842.40, 133,090.80 and 49,328.80 is: 73,897.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,842.40 : 133,090.80 = 49,328.80 : x
  2. Step 2: Convert to fraction form
    88,842.40/133,090.80 = 49,328.80/x
  3. Step 3: Cross multiply
    88,842.40x = 133,090.80 × 49,328.80
  4. Step 4: Simplify right side
    88,842.40x = 6,565,209,455.04
  5. Step 5: Solve for x
    x = 6,565,209,455.04/88,842.40
  6. Step 6: Final answer
    x = 73,897.25

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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.