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Finding the Fourth Proportional to 425,248.95, 637,988.58 and 159,036.51

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Solution

The fourth proportional to 425,248.95, 637,988.58 and 159,036.51 is: 238,597.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,248.95 : 637,988.58 = 159,036.51 : x
  2. Step 2: Convert to fraction form
    425,248.95/637,988.58 = 159,036.51/x
  3. Step 3: Cross multiply
    425,248.95x = 637,988.58 × 159,036.51
  4. Step 4: Simplify right side
    425,248.95x = 101,463,477,183.06
  5. Step 5: Solve for x
    x = 101,463,477,183.06/425,248.95
  6. Step 6: Final answer
    x = 238,597.83

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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.