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Finding the Fourth Proportional to 369,437.86, 553,157.35 and 191,570.97

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Solution

The fourth proportional to 369,437.86, 553,157.35 and 191,570.97 is: 286,838.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,437.86 : 553,157.35 = 191,570.97 : x
  2. Step 2: Convert to fraction form
    369,437.86/553,157.35 = 191,570.97/x
  3. Step 3: Cross multiply
    369,437.86x = 553,157.35 × 191,570.97
  4. Step 4: Simplify right side
    369,437.86x = 105,968,892,775.13
  5. Step 5: Solve for x
    x = 105,968,892,775.13/369,437.86
  6. Step 6: Final answer
    x = 286,838.20

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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.