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Finding the Fourth Proportional to 572,089.16, 857,801.43 and 216,909.42

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Solution

The fourth proportional to 572,089.16, 857,801.43 and 216,909.42 is: 325,238.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,089.16 : 857,801.43 = 216,909.42 : x
  2. Step 2: Convert to fraction form
    572,089.16/857,801.43 = 216,909.42/x
  3. Step 3: Cross multiply
    572,089.16x = 857,801.43 × 216,909.42
  4. Step 4: Simplify right side
    572,089.16x = 186,065,210,656.47
  5. Step 5: Solve for x
    x = 186,065,210,656.47/572,089.16
  6. Step 6: Final answer
    x = 325,238.14

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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.