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Finding the Fourth Proportional to 369,070.83, 553,409.42 and 191,136.51

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Solution

The fourth proportional to 369,070.83, 553,409.42 and 191,136.51 is: 286,602.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,070.83 : 553,409.42 = 191,136.51 : x
  2. Step 2: Convert to fraction form
    369,070.83/553,409.42 = 191,136.51/x
  3. Step 3: Cross multiply
    369,070.83x = 553,409.42 × 191,136.51
  4. Step 4: Simplify right side
    369,070.83x = 105,776,744,184.24
  5. Step 5: Solve for x
    x = 105,776,744,184.24/369,070.83
  6. Step 6: Final answer
    x = 286,602.83

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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.