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Finding the Fourth Proportional to 166,075.70, 249,113.55 and 156,890.30

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Solution

The fourth proportional to 166,075.70, 249,113.55 and 156,890.30 is: 235,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,075.70 : 249,113.55 = 156,890.30 : x
  2. Step 2: Convert to fraction form
    166,075.70/249,113.55 = 156,890.30/x
  3. Step 3: Cross multiply
    166,075.70x = 249,113.55 × 156,890.30
  4. Step 4: Simplify right side
    166,075.70x = 39,083,499,593.57
  5. Step 5: Solve for x
    x = 39,083,499,593.57/166,075.70
  6. Step 6: Final answer
    x = 235,335.45

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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.