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Finding the Fourth Proportional to 191,803.68, 264,786.24 and 148,688.16

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Solution

The fourth proportional to 191,803.68, 264,786.24 and 148,688.16 is: 205,264.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,803.68 : 264,786.24 = 148,688.16 : x
  2. Step 2: Convert to fraction form
    191,803.68/264,786.24 = 148,688.16/x
  3. Step 3: Cross multiply
    191,803.68x = 264,786.24 × 148,688.16
  4. Step 4: Simplify right side
    191,803.68x = 39,370,578,818.92
  5. Step 5: Solve for x
    x = 39,370,578,818.92/191,803.68
  6. Step 6: Final answer
    x = 205,264.98

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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.