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Finding the Fourth Proportional to 98,369.92, 147,657.40 and 87,196.24

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Solution

The fourth proportional to 98,369.92, 147,657.40 and 87,196.24 is: 130,885.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,369.92 : 147,657.40 = 87,196.24 : x
  2. Step 2: Convert to fraction form
    98,369.92/147,657.40 = 87,196.24/x
  3. Step 3: Cross multiply
    98,369.92x = 147,657.40 × 87,196.24
  4. Step 4: Simplify right side
    98,369.92x = 12,875,170,088.18
  5. Step 5: Solve for x
    x = 12,875,170,088.18/98,369.92
  6. Step 6: Final answer
    x = 130,885.23

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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.