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Finding the Fourth Proportional to 183,698.91, 253,505.43 and 103,127.40

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Solution

The fourth proportional to 183,698.91, 253,505.43 and 103,127.40 is: 142,316.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,698.91 : 253,505.43 = 103,127.40 : x
  2. Step 2: Convert to fraction form
    183,698.91/253,505.43 = 103,127.40/x
  3. Step 3: Cross multiply
    183,698.91x = 253,505.43 × 103,127.40
  4. Step 4: Simplify right side
    183,698.91x = 26,143,355,881.78
  5. Step 5: Solve for x
    x = 26,143,355,881.78/183,698.91
  6. Step 6: Final answer
    x = 142,316.34

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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.