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Finding the Fourth Proportional to 153,887.20, 230,830.80 and 94,530.40

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Solution

The fourth proportional to 153,887.20, 230,830.80 and 94,530.40 is: 141,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,887.20 : 230,830.80 = 94,530.40 : x
  2. Step 2: Convert to fraction form
    153,887.20/230,830.80 = 94,530.40/x
  3. Step 3: Cross multiply
    153,887.20x = 230,830.80 × 94,530.40
  4. Step 4: Simplify right side
    153,887.20x = 21,820,527,856.32
  5. Step 5: Solve for x
    x = 21,820,527,856.32/153,887.20
  6. Step 6: Final answer
    x = 141,795.60

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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.