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Finding the Fourth Proportional to 102,615.60, 153,923.40 and 94,742.40

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Solution

The fourth proportional to 102,615.60, 153,923.40 and 94,742.40 is: 142,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,615.60 : 153,923.40 = 94,742.40 : x
  2. Step 2: Convert to fraction form
    102,615.60/153,923.40 = 94,742.40/x
  3. Step 3: Cross multiply
    102,615.60x = 153,923.40 × 94,742.40
  4. Step 4: Simplify right side
    102,615.60x = 14,583,072,332.16
  5. Step 5: Solve for x
    x = 14,583,072,332.16/102,615.60
  6. Step 6: Final answer
    x = 142,113.60

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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.