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Finding the Fourth Proportional to 389,667,692.55, 584,496,661.68 and 94,565,256.70

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Solution

The fourth proportional to 389,667,692.55, 584,496,661.68 and 94,565,256.70 is: 141,846,701.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,667,692.55 : 584,496,661.68 = 94,565,256.70 : x
  2. Step 2: Convert to fraction form
    389,667,692.55/584,496,661.68 = 94,565,256.70/x
  3. Step 3: Cross multiply
    389,667,692.55x = 584,496,661.68 × 94,565,256.70
  4. Step 4: Simplify right side
    389,667,692.55x = 55,273,076,852,062,248
  5. Step 5: Solve for x
    x = 55,273,076,852,062,248/389,667,692.55
  6. Step 6: Final answer
    x = 141,846,701.46

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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.