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Finding the Fourth Proportional to 151,347.60, 208,861.11 and 83,364.84

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Solution

The fourth proportional to 151,347.60, 208,861.11 and 83,364.84 is: 115,044.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,347.60 : 208,861.11 = 83,364.84 : x
  2. Step 2: Convert to fraction form
    151,347.60/208,861.11 = 83,364.84/x
  3. Step 3: Cross multiply
    151,347.60x = 208,861.11 × 83,364.84
  4. Step 4: Simplify right side
    151,347.60x = 17,411,673,017.37
  5. Step 5: Solve for x
    x = 17,411,673,017.37/151,347.60
  6. Step 6: Final answer
    x = 115,044.26

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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.