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Finding the Fourth Proportional to 96,953.40, 145,430.10 and 96,031.80

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Solution

The fourth proportional to 96,953.40, 145,430.10 and 96,031.80 is: 144,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,953.40 : 145,430.10 = 96,031.80 : x
  2. Step 2: Convert to fraction form
    96,953.40/145,430.10 = 96,031.80/x
  3. Step 3: Cross multiply
    96,953.40x = 145,430.10 × 96,031.80
  4. Step 4: Simplify right side
    96,953.40x = 13,965,914,277.18
  5. Step 5: Solve for x
    x = 13,965,914,277.18/96,953.40
  6. Step 6: Final answer
    x = 144,047.70

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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.