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Finding the Fourth Proportional to 153,154.67, 211,372.07 and 92,723.81

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Solution

The fourth proportional to 153,154.67, 211,372.07 and 92,723.81 is: 127,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,154.67 : 211,372.07 = 92,723.81 : x
  2. Step 2: Convert to fraction form
    153,154.67/211,372.07 = 92,723.81/x
  3. Step 3: Cross multiply
    153,154.67x = 211,372.07 × 92,723.81
  4. Step 4: Simplify right side
    153,154.67x = 19,599,222,137.51
  5. Step 5: Solve for x
    x = 19,599,222,137.51/153,154.67
  6. Step 6: Final answer
    x = 127,970.13

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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.