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Finding the Fourth Proportional to 153,931.60, 230,904.60 and 48,758.80

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Solution

The fourth proportional to 153,931.60, 230,904.60 and 48,758.80 is: 73,140.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,931.60 : 230,904.60 = 48,758.80 : x
  2. Step 2: Convert to fraction form
    153,931.60/230,904.60 = 48,758.80/x
  3. Step 3: Cross multiply
    153,931.60x = 230,904.60 × 48,758.80
  4. Step 4: Simplify right side
    153,931.60x = 11,258,631,210.48
  5. Step 5: Solve for x
    x = 11,258,631,210.48/153,931.60
  6. Step 6: Final answer
    x = 73,140.48

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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.