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Finding the Fourth Proportional to 157,291.77, 216,970.75 and 111,299.77

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Solution

The fourth proportional to 157,291.77, 216,970.75 and 111,299.77 is: 153,528.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,291.77 : 216,970.75 = 111,299.77 : x
  2. Step 2: Convert to fraction form
    157,291.77/216,970.75 = 111,299.77/x
  3. Step 3: Cross multiply
    157,291.77x = 216,970.75 × 111,299.77
  4. Step 4: Simplify right side
    157,291.77x = 24,148,794,982.07
  5. Step 5: Solve for x
    x = 24,148,794,982.07/157,291.77
  6. Step 6: Final answer
    x = 153,528.66

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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.