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Finding the Fourth Proportional to 173,287.80, 260,018.10 and 98,465.40

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Solution

The fourth proportional to 173,287.80, 260,018.10 and 98,465.40 is: 147,747.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,287.80 : 260,018.10 = 98,465.40 : x
  2. Step 2: Convert to fraction form
    173,287.80/260,018.10 = 98,465.40/x
  3. Step 3: Cross multiply
    173,287.80x = 260,018.10 × 98,465.40
  4. Step 4: Simplify right side
    173,287.80x = 25,602,786,223.74
  5. Step 5: Solve for x
    x = 25,602,786,223.74/173,287.80
  6. Step 6: Final answer
    x = 147,747.19

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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.