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Finding the Fourth Proportional to 171,075.16, 256,431.30 and 65,848.60

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Solution

The fourth proportional to 171,075.16, 256,431.30 and 65,848.60 is: 98,703.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,075.16 : 256,431.30 = 65,848.60 : x
  2. Step 2: Convert to fraction form
    171,075.16/256,431.30 = 65,848.60/x
  3. Step 3: Cross multiply
    171,075.16x = 256,431.30 × 65,848.60
  4. Step 4: Simplify right side
    171,075.16x = 16,885,642,101.18
  5. Step 5: Solve for x
    x = 16,885,642,101.18/171,075.16
  6. Step 6: Final answer
    x = 98,703.06

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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.