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Finding the Fourth Proportional to 124,313.30, 186,469.95 and 104,630.30

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Solution

The fourth proportional to 124,313.30, 186,469.95 and 104,630.30 is: 156,945.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,313.30 : 186,469.95 = 104,630.30 : x
  2. Step 2: Convert to fraction form
    124,313.30/186,469.95 = 104,630.30/x
  3. Step 3: Cross multiply
    124,313.30x = 186,469.95 × 104,630.30
  4. Step 4: Simplify right side
    124,313.30x = 19,510,406,809.49
  5. Step 5: Solve for x
    x = 19,510,406,809.49/124,313.30
  6. Step 6: Final answer
    x = 156,945.45

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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.