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Finding the Fourth Proportional to 239,111, 329,973.18 and 133,127

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Solution

The fourth proportional to 239,111, 329,973.18 and 133,127 is: 183,715.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,111 : 329,973.18 = 133,127 : x
  2. Step 2: Convert to fraction form
    239,111/329,973.18 = 133,127/x
  3. Step 3: Cross multiply
    239,111x = 329,973.18 × 133,127
  4. Step 4: Simplify right side
    239,111x = 43,928,339,533.86
  5. Step 5: Solve for x
    x = 43,928,339,533.86/239,111
  6. Step 6: Final answer
    x = 183,715.26

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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.