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Finding the Fourth Proportional to 216,417.51, 324,642.59 and 64,602.60

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Solution

The fourth proportional to 216,417.51, 324,642.59 and 64,602.60 is: 96,908.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,417.51 : 324,642.59 = 64,602.60 : x
  2. Step 2: Convert to fraction form
    216,417.51/324,642.59 = 64,602.60/x
  3. Step 3: Cross multiply
    216,417.51x = 324,642.59 × 64,602.60
  4. Step 4: Simplify right side
    216,417.51x = 20,972,753,438.51
  5. Step 5: Solve for x
    x = 20,972,753,438.51/216,417.51
  6. Step 6: Final answer
    x = 96,908.76

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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.