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Finding the Fourth Proportional to 56,603.60, 84,905.40 and 51,160.40

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Solution

The fourth proportional to 56,603.60, 84,905.40 and 51,160.40 is: 76,740.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,603.60 : 84,905.40 = 51,160.40 : x
  2. Step 2: Convert to fraction form
    56,603.60/84,905.40 = 51,160.40/x
  3. Step 3: Cross multiply
    56,603.60x = 84,905.40 × 51,160.40
  4. Step 4: Simplify right side
    56,603.60x = 4,343,794,226.16
  5. Step 5: Solve for x
    x = 4,343,794,226.16/56,603.60
  6. Step 6: Final answer
    x = 76,740.60

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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.