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Finding the Fourth Proportional to 135,802.30, 203,703.45 and 56,908.30

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Solution

The fourth proportional to 135,802.30, 203,703.45 and 56,908.30 is: 85,362.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,802.30 : 203,703.45 = 56,908.30 : x
  2. Step 2: Convert to fraction form
    135,802.30/203,703.45 = 56,908.30/x
  3. Step 3: Cross multiply
    135,802.30x = 203,703.45 × 56,908.30
  4. Step 4: Simplify right side
    135,802.30x = 11,592,417,043.64
  5. Step 5: Solve for x
    x = 11,592,417,043.64/135,802.30
  6. Step 6: Final answer
    x = 85,362.45

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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.