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Finding the Fourth Proportional to 130,092, 179,527.20 and 70,476

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Solution

The fourth proportional to 130,092, 179,527.20 and 70,476 is: 97,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,092 : 179,527.20 = 70,476 : x
  2. Step 2: Convert to fraction form
    130,092/179,527.20 = 70,476/x
  3. Step 3: Cross multiply
    130,092x = 179,527.20 × 70,476
  4. Step 4: Simplify right side
    130,092x = 12,652,358,947.20
  5. Step 5: Solve for x
    x = 12,652,358,947.20/130,092
  6. Step 6: Final answer
    x = 97,257.01

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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.