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Finding the Fourth Proportional to 118,210.92, 163,108.72 and 70,468.72

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Solution

The fourth proportional to 118,210.92, 163,108.72 and 70,468.72 is: 97,233.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,210.92 : 163,108.72 = 70,468.72 : x
  2. Step 2: Convert to fraction form
    118,210.92/163,108.72 = 70,468.72/x
  3. Step 3: Cross multiply
    118,210.92x = 163,108.72 × 70,468.72
  4. Step 4: Simplify right side
    118,210.92x = 11,494,062,719.24
  5. Step 5: Solve for x
    x = 11,494,062,719.24/118,210.92
  6. Step 6: Final answer
    x = 97,233.51

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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.