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Finding the Fourth Proportional to 130,095, 179,532.18 and 70,479

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Solution

The fourth proportional to 130,095, 179,532.18 and 70,479 is: 97,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,095 : 179,532.18 = 70,479 : x
  2. Step 2: Convert to fraction form
    130,095/179,532.18 = 70,479/x
  3. Step 3: Cross multiply
    130,095x = 179,532.18 × 70,479
  4. Step 4: Simplify right side
    130,095x = 12,653,248,514.22
  5. Step 5: Solve for x
    x = 12,653,248,514.22/130,095
  6. Step 6: Final answer
    x = 97,261.61

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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.