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Finding the Fourth Proportional to 93,312,073.60, 139,968,110.40 and 70,637,257.60

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Solution

The fourth proportional to 93,312,073.60, 139,968,110.40 and 70,637,257.60 is: 105,955,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,073.60 : 139,968,110.40 = 70,637,257.60 : x
  2. Step 2: Convert to fraction form
    93,312,073.60/139,968,110.40 = 70,637,257.60/x
  3. Step 3: Cross multiply
    93,312,073.60x = 139,968,110.40 × 70,637,257.60
  4. Step 4: Simplify right side
    93,312,073.60x = 9,886,963,470,110,038
  5. Step 5: Solve for x
    x = 9,886,963,470,110,038/93,312,073.60
  6. Step 6: Final answer
    x = 105,955,886.40

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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.