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Finding the Fourth Proportional to 181,820.60, 272,512.20 and 93,028.40

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Solution

The fourth proportional to 181,820.60, 272,512.20 and 93,028.40 is: 139,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,820.60 : 272,512.20 = 93,028.40 : x
  2. Step 2: Convert to fraction form
    181,820.60/272,512.20 = 93,028.40/x
  3. Step 3: Cross multiply
    181,820.60x = 272,512.20 × 93,028.40
  4. Step 4: Simplify right side
    181,820.60x = 25,351,373,946.48
  5. Step 5: Solve for x
    x = 25,351,373,946.48/181,820.60
  6. Step 6: Final answer
    x = 139,430.70

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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.