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Finding the Fourth Proportional to 191,681.66, 264,521.76 and 111,156.98

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Solution

The fourth proportional to 191,681.66, 264,521.76 and 111,156.98 is: 153,397.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,681.66 : 264,521.76 = 111,156.98 : x
  2. Step 2: Convert to fraction form
    191,681.66/264,521.76 = 111,156.98/x
  3. Step 3: Cross multiply
    191,681.66x = 264,521.76 × 111,156.98
  4. Step 4: Simplify right side
    191,681.66x = 29,403,440,072.07
  5. Step 5: Solve for x
    x = 29,403,440,072.07/191,681.66
  6. Step 6: Final answer
    x = 153,397.25

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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.