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Finding the Fourth Proportional to 235,068.72, 324,393.76 and 127,637.88

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Solution

The fourth proportional to 235,068.72, 324,393.76 and 127,637.88 is: 176,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,068.72 : 324,393.76 = 127,637.88 : x
  2. Step 2: Convert to fraction form
    235,068.72/324,393.76 = 127,637.88/x
  3. Step 3: Cross multiply
    235,068.72x = 324,393.76 × 127,637.88
  4. Step 4: Simplify right side
    235,068.72x = 41,404,931,811.63
  5. Step 5: Solve for x
    x = 41,404,931,811.63/235,068.72
  6. Step 6: Final answer
    x = 176,139.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.