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Finding the Fourth Proportional to 130,153, 179,612.22 and 70,537

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Solution

The fourth proportional to 130,153, 179,612.22 and 70,537 is: 97,341.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,153 : 179,612.22 = 70,537 : x
  2. Step 2: Convert to fraction form
    130,153/179,612.22 = 70,537/x
  3. Step 3: Cross multiply
    130,153x = 179,612.22 × 70,537
  4. Step 4: Simplify right side
    130,153x = 12,669,307,162.14
  5. Step 5: Solve for x
    x = 12,669,307,162.14/130,153
  6. Step 6: Final answer
    x = 97,341.65

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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.