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Finding the Fourth Proportional to 94,374.40, 141,772.80 and 78,822.40

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Solution

The fourth proportional to 94,374.40, 141,772.80 and 78,822.40 is: 118,410.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,374.40 : 141,772.80 = 78,822.40 : x
  2. Step 2: Convert to fraction form
    94,374.40/141,772.80 = 78,822.40/x
  3. Step 3: Cross multiply
    94,374.40x = 141,772.80 × 78,822.40
  4. Step 4: Simplify right side
    94,374.40x = 11,174,872,350.72
  5. Step 5: Solve for x
    x = 11,174,872,350.72/94,374.40
  6. Step 6: Final answer
    x = 118,410.00

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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.