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Finding the Fourth Proportional to 261,346.70, 360,636.54 and 146,609.30

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Solution

The fourth proportional to 261,346.70, 360,636.54 and 146,609.30 is: 202,308.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,346.70 : 360,636.54 = 146,609.30 : x
  2. Step 2: Convert to fraction form
    261,346.70/360,636.54 = 146,609.30/x
  3. Step 3: Cross multiply
    261,346.70x = 360,636.54 × 146,609.30
  4. Step 4: Simplify right side
    261,346.70x = 52,872,670,683.82
  5. Step 5: Solve for x
    x = 52,872,670,683.82/261,346.70
  6. Step 6: Final answer
    x = 202,308.55

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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.