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Finding the Fourth Proportional to 98,582, 136,045.88 and 60,340.78

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Solution

The fourth proportional to 98,582, 136,045.88 and 60,340.78 is: 83,271.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,582 : 136,045.88 = 60,340.78 : x
  2. Step 2: Convert to fraction form
    98,582/136,045.88 = 60,340.78/x
  3. Step 3: Cross multiply
    98,582x = 136,045.88 × 60,340.78
  4. Step 4: Simplify right side
    98,582x = 8,209,114,514.99
  5. Step 5: Solve for x
    x = 8,209,114,514.99/98,582
  6. Step 6: Final answer
    x = 83,271.94

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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.