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Finding the Fourth Proportional to 525,785.70, 788,861.70 and 166,012.08

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Solution

The fourth proportional to 525,785.70, 788,861.70 and 166,012.08 is: 249,075.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,785.70 : 788,861.70 = 166,012.08 : x
  2. Step 2: Convert to fraction form
    525,785.70/788,861.70 = 166,012.08/x
  3. Step 3: Cross multiply
    525,785.70x = 788,861.70 × 166,012.08
  4. Step 4: Simplify right side
    525,785.70x = 130,960,571,649.34
  5. Step 5: Solve for x
    x = 130,960,571,649.34/525,785.70
  6. Step 6: Final answer
    x = 249,075.95

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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.