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Finding the Fourth Proportional to 151,937.16, 209,662.48 and 83,953.40

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Solution

The fourth proportional to 151,937.16, 209,662.48 and 83,953.40 is: 115,849.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,937.16 : 209,662.48 = 83,953.40 : x
  2. Step 2: Convert to fraction form
    151,937.16/209,662.48 = 83,953.40/x
  3. Step 3: Cross multiply
    151,937.16x = 209,662.48 × 83,953.40
  4. Step 4: Simplify right side
    151,937.16x = 17,601,878,048.43
  5. Step 5: Solve for x
    x = 17,601,878,048.43/151,937.16
  6. Step 6: Final answer
    x = 115,849.72

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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.