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Finding the Fourth Proportional to 114,717.71, 172,186.01 and 70,430.96

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Solution

The fourth proportional to 114,717.71, 172,186.01 and 70,430.96 is: 105,713.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,717.71 : 172,186.01 = 70,430.96 : x
  2. Step 2: Convert to fraction form
    114,717.71/172,186.01 = 70,430.96/x
  3. Step 3: Cross multiply
    114,717.71x = 172,186.01 × 70,430.96
  4. Step 4: Simplify right side
    114,717.71x = 12,127,225,982.87
  5. Step 5: Solve for x
    x = 12,127,225,982.87/114,717.71
  6. Step 6: Final answer
    x = 105,713.63

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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.