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Finding the Fourth Proportional to 157,031.88, 216,632.52 and 93,333.48

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Solution

The fourth proportional to 157,031.88, 216,632.52 and 93,333.48 is: 128,757.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,031.88 : 216,632.52 = 93,333.48 : x
  2. Step 2: Convert to fraction form
    157,031.88/216,632.52 = 93,333.48/x
  3. Step 3: Cross multiply
    157,031.88x = 216,632.52 × 93,333.48
  4. Step 4: Simplify right side
    157,031.88x = 20,219,066,972.77
  5. Step 5: Solve for x
    x = 20,219,066,972.77/157,031.88
  6. Step 6: Final answer
    x = 128,757.72

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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.