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Finding the Fourth Proportional to 98,774.40, 148,226.40 and 56,654.40

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Solution

The fourth proportional to 98,774.40, 148,226.40 and 56,654.40 is: 85,018.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,774.40 : 148,226.40 = 56,654.40 : x
  2. Step 2: Convert to fraction form
    98,774.40/148,226.40 = 56,654.40/x
  3. Step 3: Cross multiply
    98,774.40x = 148,226.40 × 56,654.40
  4. Step 4: Simplify right side
    98,774.40x = 8,397,677,756.16
  5. Step 5: Solve for x
    x = 8,397,677,756.16/98,774.40
  6. Step 6: Final answer
    x = 85,018.77

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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.