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Finding the Fourth Proportional to 368,654.04, 553,020.54 and 102,415.32

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Solution

The fourth proportional to 368,654.04, 553,020.54 and 102,415.32 is: 153,633.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,654.04 : 553,020.54 = 102,415.32 : x
  2. Step 2: Convert to fraction form
    368,654.04/553,020.54 = 102,415.32/x
  3. Step 3: Cross multiply
    368,654.04x = 553,020.54 × 102,415.32
  4. Step 4: Simplify right side
    368,654.04x = 56,637,775,570.67
  5. Step 5: Solve for x
    x = 56,637,775,570.67/368,654.04
  6. Step 6: Final answer
    x = 153,633.95

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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.