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Finding the Fourth Proportional to 98,347.97, 147,521.45 and 84,980.29

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Solution

The fourth proportional to 98,347.97, 147,521.45 and 84,980.29 is: 127,470.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,347.97 : 147,521.45 = 84,980.29 : x
  2. Step 2: Convert to fraction form
    98,347.97/147,521.45 = 84,980.29/x
  3. Step 3: Cross multiply
    98,347.97x = 147,521.45 × 84,980.29
  4. Step 4: Simplify right side
    98,347.97x = 12,536,415,602.22
  5. Step 5: Solve for x
    x = 12,536,415,602.22/98,347.97
  6. Step 6: Final answer
    x = 127,470.00

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1.5x scale

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.