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Finding the Fourth Proportional to 153,341.60, 230,012.40 and 128,847.20

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Solution

The fourth proportional to 153,341.60, 230,012.40 and 128,847.20 is: 193,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,341.60 : 230,012.40 = 128,847.20 : x
  2. Step 2: Convert to fraction form
    153,341.60/230,012.40 = 128,847.20/x
  3. Step 3: Cross multiply
    153,341.60x = 230,012.40 × 128,847.20
  4. Step 4: Simplify right side
    153,341.60x = 29,636,453,705.28
  5. Step 5: Solve for x
    x = 29,636,453,705.28/153,341.60
  6. Step 6: Final answer
    x = 193,270.80

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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.