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Finding the Fourth Proportional to 434,681.91, 651,952.89 and 119,065.05

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Solution

The fourth proportional to 434,681.91, 651,952.89 and 119,065.05 is: 178,578.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,681.91 : 651,952.89 = 119,065.05 : x
  2. Step 2: Convert to fraction form
    434,681.91/651,952.89 = 119,065.05/x
  3. Step 3: Cross multiply
    434,681.91x = 651,952.89 × 119,065.05
  4. Step 4: Simplify right side
    434,681.91x = 77,624,803,445.49
  5. Step 5: Solve for x
    x = 77,624,803,445.49/434,681.91
  6. Step 6: Final answer
    x = 178,578.41

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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.