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Finding the Fourth Proportional to 173,281.80, 260,009.10 and 98,459.40

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Solution

The fourth proportional to 173,281.80, 260,009.10 and 98,459.40 is: 147,738.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,281.80 : 260,009.10 = 98,459.40 : x
  2. Step 2: Convert to fraction form
    173,281.80/260,009.10 = 98,459.40/x
  3. Step 3: Cross multiply
    173,281.80x = 260,009.10 × 98,459.40
  4. Step 4: Simplify right side
    173,281.80x = 25,600,339,980.54
  5. Step 5: Solve for x
    x = 25,600,339,980.54/173,281.80
  6. Step 6: Final answer
    x = 147,738.19

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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.