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Finding the Fourth Proportional to 130,126.98, 179,573.76 and 70,510.98

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Solution

The fourth proportional to 130,126.98, 179,573.76 and 70,510.98 is: 97,304.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,126.98 : 179,573.76 = 70,510.98 : x
  2. Step 2: Convert to fraction form
    130,126.98/179,573.76 = 70,510.98/x
  3. Step 3: Cross multiply
    130,126.98x = 179,573.76 × 70,510.98
  4. Step 4: Simplify right side
    130,126.98x = 12,661,921,799.88
  5. Step 5: Solve for x
    x = 12,661,921,799.88/130,126.98
  6. Step 6: Final answer
    x = 97,304.35

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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.