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Finding the Fourth Proportional to 163,686.92, 224,908.94 and 130,094.60

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Solution

The fourth proportional to 163,686.92, 224,908.94 and 130,094.60 is: 178,752.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,686.92 : 224,908.94 = 130,094.60 : x
  2. Step 2: Convert to fraction form
    163,686.92/224,908.94 = 130,094.60/x
  3. Step 3: Cross multiply
    163,686.92x = 224,908.94 × 130,094.60
  4. Step 4: Simplify right side
    163,686.92x = 29,259,438,585.72
  5. Step 5: Solve for x
    x = 29,259,438,585.72/163,686.92
  6. Step 6: Final answer
    x = 178,752.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.