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Finding the Fourth Proportional to 139,685.76, 192,853.44 and 97,228.80

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Solution

The fourth proportional to 139,685.76, 192,853.44 and 97,228.80 is: 134,236.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,685.76 : 192,853.44 = 97,228.80 : x
  2. Step 2: Convert to fraction form
    139,685.76/192,853.44 = 97,228.80/x
  3. Step 3: Cross multiply
    139,685.76x = 192,853.44 × 97,228.80
  4. Step 4: Simplify right side
    139,685.76x = 18,750,908,547.07
  5. Step 5: Solve for x
    x = 18,750,908,547.07/139,685.76
  6. Step 6: Final answer
    x = 134,236.36

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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.