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Finding the Fourth Proportional to 153,238.79, 211,476.42 and 127,702.41

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Solution

The fourth proportional to 153,238.79, 211,476.42 and 127,702.41 is: 176,235.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,238.79 : 211,476.42 = 127,702.41 : x
  2. Step 2: Convert to fraction form
    153,238.79/211,476.42 = 127,702.41/x
  3. Step 3: Cross multiply
    153,238.79x = 211,476.42 × 127,702.41
  4. Step 4: Simplify right side
    153,238.79x = 27,006,047,699.14
  5. Step 5: Solve for x
    x = 27,006,047,699.14/153,238.79
  6. Step 6: Final answer
    x = 176,235.06

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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.