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Finding the Fourth Proportional to 98,159.40, 147,239.10 and 95,972.40

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Solution

The fourth proportional to 98,159.40, 147,239.10 and 95,972.40 is: 143,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,159.40 : 147,239.10 = 95,972.40 : x
  2. Step 2: Convert to fraction form
    98,159.40/147,239.10 = 95,972.40/x
  3. Step 3: Cross multiply
    98,159.40x = 147,239.10 × 95,972.40
  4. Step 4: Simplify right side
    98,159.40x = 14,130,889,800.84
  5. Step 5: Solve for x
    x = 14,130,889,800.84/98,159.40
  6. Step 6: Final answer
    x = 143,958.60

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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.