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Finding the Fourth Proportional to 370,071.11, 510,702.44 and 217,111.93

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Solution

The fourth proportional to 370,071.11, 510,702.44 and 217,111.93 is: 299,616.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,071.11 : 510,702.44 = 217,111.93 : x
  2. Step 2: Convert to fraction form
    370,071.11/510,702.44 = 217,111.93/x
  3. Step 3: Cross multiply
    370,071.11x = 510,702.44 × 217,111.93
  4. Step 4: Simplify right side
    370,071.11x = 110,879,590,041.79
  5. Step 5: Solve for x
    x = 110,879,590,041.79/370,071.11
  6. Step 6: Final answer
    x = 299,616.98

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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.