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Finding the Fourth Proportional to 98,607.70, 147,911.55 and 61,404.40

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Solution

The fourth proportional to 98,607.70, 147,911.55 and 61,404.40 is: 92,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,607.70 : 147,911.55 = 61,404.40 : x
  2. Step 2: Convert to fraction form
    98,607.70/147,911.55 = 61,404.40/x
  3. Step 3: Cross multiply
    98,607.70x = 147,911.55 × 61,404.40
  4. Step 4: Simplify right side
    98,607.70x = 9,082,419,980.82
  5. Step 5: Solve for x
    x = 9,082,419,980.82/98,607.70
  6. Step 6: Final answer
    x = 92,106.60

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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.