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Finding the Fourth Proportional to 105,340.40, 157,703.40 and 94,281.20

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Solution

The fourth proportional to 105,340.40, 157,703.40 and 94,281.20 is: 141,146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,340.40 : 157,703.40 = 94,281.20 : x
  2. Step 2: Convert to fraction form
    105,340.40/157,703.40 = 94,281.20/x
  3. Step 3: Cross multiply
    105,340.40x = 157,703.40 × 94,281.20
  4. Step 4: Simplify right side
    105,340.40x = 14,868,465,796.08
  5. Step 5: Solve for x
    x = 14,868,465,796.08/105,340.40
  6. Step 6: Final answer
    x = 141,146.85

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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.