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Finding the Fourth Proportional to 99,905.60, 149,858.40 and 94,462.40

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Solution

The fourth proportional to 99,905.60, 149,858.40 and 94,462.40 is: 141,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,905.60 : 149,858.40 = 94,462.40 : x
  2. Step 2: Convert to fraction form
    99,905.60/149,858.40 = 94,462.40/x
  3. Step 3: Cross multiply
    99,905.60x = 149,858.40 × 94,462.40
  4. Step 4: Simplify right side
    99,905.60x = 14,155,984,124.16
  5. Step 5: Solve for x
    x = 14,155,984,124.16/99,905.60
  6. Step 6: Final answer
    x = 141,693.60

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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.