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Finding the Fourth Proportional to 186,221.34, 256,990.05 and 101,343.06

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Solution

The fourth proportional to 186,221.34, 256,990.05 and 101,343.06 is: 139,855.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,221.34 : 256,990.05 = 101,343.06 : x
  2. Step 2: Convert to fraction form
    186,221.34/256,990.05 = 101,343.06/x
  3. Step 3: Cross multiply
    186,221.34x = 256,990.05 × 101,343.06
  4. Step 4: Simplify right side
    186,221.34x = 26,044,158,056.55
  5. Step 5: Solve for x
    x = 26,044,158,056.55/186,221.34
  6. Step 6: Final answer
    x = 139,855.93

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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.