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Finding the Fourth Proportional to 303,681.15, 455,448.83 and 93,320.91

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Solution

The fourth proportional to 303,681.15, 455,448.83 and 93,320.91 is: 139,958.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,681.15 : 455,448.83 = 93,320.91 : x
  2. Step 2: Convert to fraction form
    303,681.15/455,448.83 = 93,320.91/x
  3. Step 3: Cross multiply
    303,681.15x = 455,448.83 × 93,320.91
  4. Step 4: Simplify right side
    303,681.15x = 42,502,898,807.43
  5. Step 5: Solve for x
    x = 42,502,898,807.43/303,681.15
  6. Step 6: Final answer
    x = 139,958.96

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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.