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Finding the Fourth Proportional to 216,897, 324,779.56 and 174,545.74

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Solution

The fourth proportional to 216,897, 324,779.56 and 174,545.74 is: 261,363.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,897 : 324,779.56 = 174,545.74 : x
  2. Step 2: Convert to fraction form
    216,897/324,779.56 = 174,545.74/x
  3. Step 3: Cross multiply
    216,897x = 324,779.56 × 174,545.74
  4. Step 4: Simplify right side
    216,897x = 56,688,888,637.07
  5. Step 5: Solve for x
    x = 56,688,888,637.07/216,897
  6. Step 6: Final answer
    x = 261,363.18

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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.