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Finding the Fourth Proportional to 273,870.42, 377,927.69 and 152,987.64

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Solution

The fourth proportional to 273,870.42, 377,927.69 and 152,987.64 is: 211,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,870.42 : 377,927.69 = 152,987.64 : x
  2. Step 2: Convert to fraction form
    273,870.42/377,927.69 = 152,987.64/x
  3. Step 3: Cross multiply
    273,870.42x = 377,927.69 × 152,987.64
  4. Step 4: Simplify right side
    273,870.42x = 57,818,264,618.81
  5. Step 5: Solve for x
    x = 57,818,264,618.81/273,870.42
  6. Step 6: Final answer
    x = 211,115.40

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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.