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Finding the Fourth Proportional to 144,688.95, 216,999.41 and 39,482.91

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Solution

The fourth proportional to 144,688.95, 216,999.41 and 39,482.91 is: 59,215.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,688.95 : 216,999.41 = 39,482.91 : x
  2. Step 2: Convert to fraction form
    144,688.95/216,999.41 = 39,482.91/x
  3. Step 3: Cross multiply
    144,688.95x = 216,999.41 × 39,482.91
  4. Step 4: Simplify right side
    144,688.95x = 8,567,767,977.67
  5. Step 5: Solve for x
    x = 8,567,767,977.67/144,688.95
  6. Step 6: Final answer
    x = 59,215.08

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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.