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Finding the Fourth Proportional to 155,838.80, 233,740.92 and 45,030.80

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Solution

The fourth proportional to 155,838.80, 233,740.92 and 45,030.80 is: 67,541.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,838.80 : 233,740.92 = 45,030.80 : x
  2. Step 2: Convert to fraction form
    155,838.80/233,740.92 = 45,030.80/x
  3. Step 3: Cross multiply
    155,838.80x = 233,740.92 × 45,030.80
  4. Step 4: Simplify right side
    155,838.80x = 10,525,540,620.34
  5. Step 5: Solve for x
    x = 10,525,540,620.34/155,838.80
  6. Step 6: Final answer
    x = 67,541.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.