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Finding the Fourth Proportional to 258,482.16, 356,723.46 and 151,064.01

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Solution

The fourth proportional to 258,482.16, 356,723.46 and 151,064.01 is: 208,478.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,482.16 : 356,723.46 = 151,064.01 : x
  2. Step 2: Convert to fraction form
    258,482.16/356,723.46 = 151,064.01/x
  3. Step 3: Cross multiply
    258,482.16x = 356,723.46 × 151,064.01
  4. Step 4: Simplify right side
    258,482.16x = 53,888,076,328.67
  5. Step 5: Solve for x
    x = 53,888,076,328.67/258,482.16
  6. Step 6: Final answer
    x = 208,478.90

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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.