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Finding the Fourth Proportional to 88,939.80, 133,364.10 and 26,602.20

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Solution

The fourth proportional to 88,939.80, 133,364.10 and 26,602.20 is: 39,889.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,939.80 : 133,364.10 = 26,602.20 : x
  2. Step 2: Convert to fraction form
    88,939.80/133,364.10 = 26,602.20/x
  3. Step 3: Cross multiply
    88,939.80x = 133,364.10 × 26,602.20
  4. Step 4: Simplify right side
    88,939.80x = 3,547,778,461.02
  5. Step 5: Solve for x
    x = 3,547,778,461.02/88,939.80
  6. Step 6: Final answer
    x = 39,889.66

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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.