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Finding the Fourth Proportional to 210,392.27, 290,342.39 and 114,898.95

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Solution

The fourth proportional to 210,392.27, 290,342.39 and 114,898.95 is: 158,561.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,392.27 : 290,342.39 = 114,898.95 : x
  2. Step 2: Convert to fraction form
    210,392.27/290,342.39 = 114,898.95/x
  3. Step 3: Cross multiply
    210,392.27x = 290,342.39 × 114,898.95
  4. Step 4: Simplify right side
    210,392.27x = 33,360,035,177.00
  5. Step 5: Solve for x
    x = 33,360,035,177.00/210,392.27
  6. Step 6: Final answer
    x = 158,561.13

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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.