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Finding the Fourth Proportional to 191,336.95, 286,905.98 and 56,383.32

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Solution

The fourth proportional to 191,336.95, 286,905.98 and 56,383.32 is: 84,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,336.95 : 286,905.98 = 56,383.32 : x
  2. Step 2: Convert to fraction form
    191,336.95/286,905.98 = 56,383.32/x
  3. Step 3: Cross multiply
    191,336.95x = 286,905.98 × 56,383.32
  4. Step 4: Simplify right side
    191,336.95x = 16,176,712,897.11
  5. Step 5: Solve for x
    x = 16,176,712,897.11/191,336.95
  6. Step 6: Final answer
    x = 84,545.68

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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.