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Finding the Fourth Proportional to 134,879.60, 202,319.40 and 64,722.80

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Solution

The fourth proportional to 134,879.60, 202,319.40 and 64,722.80 is: 97,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,879.60 : 202,319.40 = 64,722.80 : x
  2. Step 2: Convert to fraction form
    134,879.60/202,319.40 = 64,722.80/x
  3. Step 3: Cross multiply
    134,879.60x = 202,319.40 × 64,722.80
  4. Step 4: Simplify right side
    134,879.60x = 13,094,678,062.32
  5. Step 5: Solve for x
    x = 13,094,678,062.32/134,879.60
  6. Step 6: Final answer
    x = 97,084.20

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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.