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Finding the Fourth Proportional to 216,907.76, 325,417.72 and 127,026.36

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Solution

The fourth proportional to 216,907.76, 325,417.72 and 127,026.36 is: 190,572.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,907.76 : 325,417.72 = 127,026.36 : x
  2. Step 2: Convert to fraction form
    216,907.76/325,417.72 = 127,026.36/x
  3. Step 3: Cross multiply
    216,907.76x = 325,417.72 × 127,026.36
  4. Step 4: Simplify right side
    216,907.76x = 41,336,628,451.10
  5. Step 5: Solve for x
    x = 41,336,628,451.10/216,907.76
  6. Step 6: Final answer
    x = 190,572.38

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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.