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Finding the Fourth Proportional to 328,283.15, 492,483.08 and 112,130.15

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Solution

The fourth proportional to 328,283.15, 492,483.08 and 112,130.15 is: 168,215.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,283.15 : 492,483.08 = 112,130.15 : x
  2. Step 2: Convert to fraction form
    328,283.15/492,483.08 = 112,130.15/x
  3. Step 3: Cross multiply
    328,283.15x = 492,483.08 × 112,130.15
  4. Step 4: Simplify right side
    328,283.15x = 55,222,199,450.77
  5. Step 5: Solve for x
    x = 55,222,199,450.77/328,283.15
  6. Step 6: Final answer
    x = 168,215.15

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1.5x scale

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.