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Finding the Fourth Proportional to 73,312, 101,169.46 and 43,100.76

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Solution

The fourth proportional to 73,312, 101,169.46 and 43,100.76 is: 59,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,312 : 101,169.46 = 43,100.76 : x
  2. Step 2: Convert to fraction form
    73,312/101,169.46 = 43,100.76/x
  3. Step 3: Cross multiply
    73,312x = 101,169.46 × 43,100.76
  4. Step 4: Simplify right side
    73,312x = 4,360,480,614.79
  5. Step 5: Solve for x
    x = 4,360,480,614.79/73,312
  6. Step 6: Final answer
    x = 59,478.40

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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.