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Finding the Fourth Proportional to 183,643.65, 275,465.48 and 127,656.45

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Solution

The fourth proportional to 183,643.65, 275,465.48 and 127,656.45 is: 191,484.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,643.65 : 275,465.48 = 127,656.45 : x
  2. Step 2: Convert to fraction form
    183,643.65/275,465.48 = 127,656.45/x
  3. Step 3: Cross multiply
    183,643.65x = 275,465.48 × 127,656.45
  4. Step 4: Simplify right side
    183,643.65x = 35,164,944,636.06
  5. Step 5: Solve for x
    x = 35,164,944,636.06/183,643.65
  6. Step 6: Final answer
    x = 191,484.68

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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.