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Finding the Fourth Proportional to 425,300.55, 637,929.65 and 159,041.51

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Solution

The fourth proportional to 425,300.55, 637,929.65 and 159,041.51 is: 238,554.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,300.55 : 637,929.65 = 159,041.51 : x
  2. Step 2: Convert to fraction form
    425,300.55/637,929.65 = 159,041.51/x
  3. Step 3: Cross multiply
    425,300.55x = 637,929.65 × 159,041.51
  4. Step 4: Simplify right side
    425,300.55x = 101,457,290,824.92
  5. Step 5: Solve for x
    x = 101,457,290,824.92/425,300.55
  6. Step 6: Final answer
    x = 238,554.34

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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.