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Finding the Fourth Proportional to 151,352.61, 208,858.88 and 83,368.13

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Solution

The fourth proportional to 151,352.61, 208,858.88 and 83,368.13 is: 115,043.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,352.61 : 208,858.88 = 83,368.13 : x
  2. Step 2: Convert to fraction form
    151,352.61/208,858.88 = 83,368.13/x
  3. Step 3: Cross multiply
    151,352.61x = 208,858.88 × 83,368.13
  4. Step 4: Simplify right side
    151,352.61x = 17,412,172,798.36
  5. Step 5: Solve for x
    x = 17,412,172,798.36/151,352.61
  6. Step 6: Final answer
    x = 115,043.76

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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.