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Finding the Fourth Proportional to 192,907.30, 289,360.95 and 66,547.30

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Solution

The fourth proportional to 192,907.30, 289,360.95 and 66,547.30 is: 99,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,907.30 : 289,360.95 = 66,547.30 : x
  2. Step 2: Convert to fraction form
    192,907.30/289,360.95 = 66,547.30/x
  3. Step 3: Cross multiply
    192,907.30x = 289,360.95 × 66,547.30
  4. Step 4: Simplify right side
    192,907.30x = 19,256,189,947.94
  5. Step 5: Solve for x
    x = 19,256,189,947.94/192,907.30
  6. Step 6: Final answer
    x = 99,820.95

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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.