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Finding the Fourth Proportional to 320,023.35, 480,033.29 and 130,482.98

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Solution

The fourth proportional to 320,023.35, 480,033.29 and 130,482.98 is: 195,723.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,023.35 : 480,033.29 = 130,482.98 : x
  2. Step 2: Convert to fraction form
    320,023.35/480,033.29 = 130,482.98/x
  3. Step 3: Cross multiply
    320,023.35x = 480,033.29 × 130,482.98
  4. Step 4: Simplify right side
    320,023.35x = 62,636,174,804.63
  5. Step 5: Solve for x
    x = 62,636,174,804.63/320,023.35
  6. Step 6: Final answer
    x = 195,723.76

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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.