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Finding the Fourth Proportional to 274,240,703.16, 411,274,643.81 and 89,965,238.76

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Solution

The fourth proportional to 274,240,703.16, 411,274,643.81 and 89,965,238.76 is: 134,919,510.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,240,703.16 : 411,274,643.81 = 89,965,238.76 : x
  2. Step 2: Convert to fraction form
    274,240,703.16/411,274,643.81 = 89,965,238.76/x
  3. Step 3: Cross multiply
    274,240,703.16x = 411,274,643.81 × 89,965,238.76
  4. Step 4: Simplify right side
    274,240,703.16x = 37,000,421,525,850,784
  5. Step 5: Solve for x
    x = 37,000,421,525,850,784/274,240,703.16
  6. Step 6: Final answer
    x = 134,919,510.85

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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.