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Finding the Fourth Proportional to 152,036.70, 209,807.19 and 84,968.70

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Solution

The fourth proportional to 152,036.70, 209,807.19 and 84,968.70 is: 117,254.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,036.70 : 209,807.19 = 84,968.70 : x
  2. Step 2: Convert to fraction form
    152,036.70/209,807.19 = 84,968.70/x
  3. Step 3: Cross multiply
    152,036.70x = 209,807.19 × 84,968.70
  4. Step 4: Simplify right side
    152,036.70x = 17,827,044,184.95
  5. Step 5: Solve for x
    x = 17,827,044,184.95/152,036.70
  6. Step 6: Final answer
    x = 117,254.87

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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.