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Finding the Fourth Proportional to 183,605.80, 253,388.12 and 103,038.88

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Solution

The fourth proportional to 183,605.80, 253,388.12 and 103,038.88 is: 142,200.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,605.80 : 253,388.12 = 103,038.88 : x
  2. Step 2: Convert to fraction form
    183,605.80/253,388.12 = 103,038.88/x
  3. Step 3: Cross multiply
    183,605.80x = 253,388.12 × 103,038.88
  4. Step 4: Simplify right side
    183,605.80x = 26,108,828,090.11
  5. Step 5: Solve for x
    x = 26,108,828,090.11/183,605.80
  6. Step 6: Final answer
    x = 142,200.45

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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.