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Finding the Fourth Proportional to 404,477.84, 606,726.14 and 104,970.21

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Solution

The fourth proportional to 404,477.84, 606,726.14 and 104,970.21 is: 157,457.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,477.84 : 606,726.14 = 104,970.21 : x
  2. Step 2: Convert to fraction form
    404,477.84/606,726.14 = 104,970.21/x
  3. Step 3: Cross multiply
    404,477.84x = 606,726.14 × 104,970.21
  4. Step 4: Simplify right side
    404,477.84x = 63,688,169,803.44
  5. Step 5: Solve for x
    x = 63,688,169,803.44/404,477.84
  6. Step 6: Final answer
    x = 157,457.75

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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.