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Finding the Fourth Proportional to 155,656.90, 233,485.35 and 135,973.90

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Solution

The fourth proportional to 155,656.90, 233,485.35 and 135,973.90 is: 203,960.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,656.90 : 233,485.35 = 135,973.90 : x
  2. Step 2: Convert to fraction form
    155,656.90/233,485.35 = 135,973.90/x
  3. Step 3: Cross multiply
    155,656.90x = 233,485.35 × 135,973.90
  4. Step 4: Simplify right side
    155,656.90x = 31,747,913,632.37
  5. Step 5: Solve for x
    x = 31,747,913,632.37/155,656.90
  6. Step 6: Final answer
    x = 203,960.85

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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.