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Finding the Fourth Proportional to 155,312.80, 213,802.72 and 114,950.48

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Solution

The fourth proportional to 155,312.80, 213,802.72 and 114,950.48 is: 158,240.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,312.80 : 213,802.72 = 114,950.48 : x
  2. Step 2: Convert to fraction form
    155,312.80/213,802.72 = 114,950.48/x
  3. Step 3: Cross multiply
    155,312.80x = 213,802.72 × 114,950.48
  4. Step 4: Simplify right side
    155,312.80x = 24,576,725,289.31
  5. Step 5: Solve for x
    x = 24,576,725,289.31/155,312.80
  6. Step 6: Final answer
    x = 158,240.18

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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.