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Finding the Fourth Proportional to 245,483.50, 338,737.47 and 136,562.09

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Solution

The fourth proportional to 245,483.50, 338,737.47 and 136,562.09 is: 188,439.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,483.50 : 338,737.47 = 136,562.09 : x
  2. Step 2: Convert to fraction form
    245,483.50/338,737.47 = 136,562.09/x
  3. Step 3: Cross multiply
    245,483.50x = 338,737.47 × 136,562.09
  4. Step 4: Simplify right side
    245,483.50x = 46,258,696,864.51
  5. Step 5: Solve for x
    x = 46,258,696,864.51/245,483.50
  6. Step 6: Final answer
    x = 188,439.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.